Intel Core i9 9900X vs Intel Core i7 7700K

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We compared two desktop CPUs: Intel Core i9 9900X with 10 cores 3.5GHz and Intel Core i7 7700K with 4 cores 4.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 9900X 's Advantages

Released 1 years and 9 months late

Higher specification of memory (DDR4-2666 vs DDR4-2400)

Larger memory bandwidth (85GB/s vs 35.76GB/s)

Larger L3 cache size (20MB vs 8MB)

Intel Core i7 7700K 's Advantages

Integrated graphics card

Higher base frequency (4.2GHz vs 3.5GHz)

Lower TDP (91W vs 165W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 9900X

1178

Intel Core i7 7700K +3%

1215

Cinebench R23 Multi Core

Intel Core i9 9900X +136%

13952

Intel Core i7 7700K

5904

Geekbench 6 Single Core

Intel Core i9 9900X

1455

Intel Core i7 7700K +7%

1557

Geekbench 6 Multi Core

Intel Core i9 9900X +95%

10273

Intel Core i7 7700K

5260

Geekbench 5 Single Core

Intel Core i9 9900X +3%

1165

Intel Core i7 7700K

1129

Geekbench 5 Multi Core

Intel Core i9 9900X +127%

10704

Intel Core i7 7700K

4705

Passmark CPU Single Core

Intel Core i9 9900X

2565

Intel Core i7 7700K +5%

2712

Passmark CPU Multi Core

Intel Core i9 9900X +127%

21833

Intel Core i7 7700K

9594

Intel Core i9 9900X

VS

Intel Core i7 7700K

General Parameters

Oct 2018

Release Date

Jan 2017

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Kaby Lake

i9-9900X

Processor Number

i7-7700K

LGA-2066

Socket

LGA-1151

N/A

Integrated Graphics

HD Graphics 630

Package

14 nm

Manufacturing Process

14 nm

LGA-2066

Socket

LGA-1151

165 W

Power Consumption

91 W

92 °C

Peak Operating Temperature

100 °C

CPU Performance

10

Performance Cores

4

20

Performance Core Threads

8

3.5 GHz

Performance Core Base Frequency

4.2 GHz

4.4 GHz

Performance Core Turbo Frequency

4.5 GHz

10

Total Core Count

4

20

Total Thread Count

8

100 MHz

Bus Frequency

42 MHz

35x

Multiplier

100x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

256 K per core

20 MB shared

L3 Cache

8 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2666

Memory Types

DDR4-2400, DDR3L-1600

128 GB

Max Memory Size

64 GB

4

Max Memory Channels

2

85 GB/s

Max Memory Bandwidth

35.76 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Base Frequency

350 MHz

-

GPU Max Dynamic Frequency

1150 MHz

-

Shader Units

192

-

Texture Units

24

-

Raster Operation Units

3

-

Execution Units

24

-

Power Consumption

15 W

-

Max Resolution

4096x2304 - 60 Hz

-

Graphics Performance

0.44 TFLOPS

Miscellaneous

Intel Core i9 9900X

Official Website

Intel Core i7 7700K

3.0

PCIe Version

3.0

44

PCIe Lanes

16

SSE4.1, SSE4.2, AVX-2, AVX-512

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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